ClassName object = mock(ClassName.class);  
doReturn(返回值).when(对象).方法(any(参数));  

例子

import static org.mockito.Mockito.*;

IcubeCompositeService icubeCompositeService = mock(IcubeCompositeService.class);        doReturn(true).when(icubeCompositeService).addIcubeDefination(any(IcubeDefinitionModel  
                .class));